描述 Description

The DS275 Line-Powered RS-232 Transceiver Chip derives power from the data line providing an extremely low-cost and low-power RS-232 serial port interface. The receiver input translates RS-232 signal levels to common CMOS/TTL levels. The transmitter circuit steals current from the receive RS-232 signal when that signal is in a negative state (marking). Since most serial communication ports remain in a negative state statically, using the receive signal for negative power greatly reduces the DS275's static power consumption.
The DS275's power-saving interface is ideal for connecting battery-powered systems such as laptop computers, remote sensors, and portable instrumentation.

特性 Features

? Low-power serial transmitter/receiver for battery-powered systems
? Power-saving transmitter steals power from receive signal
? Ultra-low-static current, even connected to RS-232-E port
? Transmitter level varies from +5 to +12V
? Compatible with RS-232-E signals
? Low-power CMOS

簡(jiǎn)介

DS275屬于集成電路（IC）的驅(qū)動(dòng)器接收器收發(fā)器。由制造生產(chǎn)的DS275驅(qū)動(dòng)器，接收器，收發(fā)器該系列產(chǎn)品的主要功能是提供必需的硬件資源，以通過延長(zhǎng)電纜或印制線進(jìn)行通信。確切的功能會(huì)因所采用的通信協(xié)議而異，可能包括諸如瞬態(tài)抑制之類的功能，這些功能對(duì)于通信用途可能并非絕對(duì)必要，但對(duì)于可能的使用環(huán)境卻是明智之選。